Capability · Coupled
Two-way fluid-structure interaction across the full envelope
Aeroelasticity, hydroelasticity, sloshing and seal deflection resolved with a tightly coupled solver loop. Run hundreds of flight or duty points overnight and get flutter margins, deflection maps and fatigue spectra instead of a single hero simulation.

640+
Coupled operating points per campaign
2-way
Implicit coupling with sub-iteration control
±3%
Typical agreement with wind-tunnel test data
Capabilities
Everything the study needs, inside one solver loop
01
Flutter & divergence margins
Modal and time-domain flutter analysis with damping tracking across Mach and altitude sweeps.
02
Gust & manoeuvre loads
Discrete and continuous turbulence load cases mapped straight onto the structural model.
03
Sloshing & free surface
VOF free-surface coupling for fuel tanks, coolant reservoirs and battery immersion systems.
04
Seal & membrane deflection
Large-deformation contact for elastomeric seals, diaphragms and flexible ducting.
05
Mesh morphing
Radial-basis-function morphing keeps the fluid mesh valid under large structural displacement.
06
Aerofoil aeroelastics (live in the studio)
Vortex-panel aerodynamics coupled to a torsional root spring — twist, tip deflection and divergence margin solved interactively.
07
Hypersonic re-entry (live in the studio)
Sphere-cone shock layer with modified-Newtonian pressure, Fay-Riddell stagnation heating and radiative-equilibrium wall temperature.
08
Multi-fidelity surrogates
MF-DNN surrogates trained on cheap analytic data plus a handful of full-solver runs predict the envelope in milliseconds.
09
Rotating machinery
Blade untwist, tip-clearance and forced-response analysis for fans, compressors and turbines.
Workflow
01
Couple the models
Map the CFD surface to the structural model with conservative load and displacement transfer.
02
Define the envelope
Parametrise Mach, altitude, angle of attack, RPM or flow rate as a sweep, not a single point.
03
Run coupled
Implicit sub-iterations with automatic under-relaxation and per-point convergence monitoring.
04
Extract margins
Damping trends, deflection envelopes and stress spectra rolled up into a certification-ready report.
Put physics in the loop, not at the end of it.
See XLAB Innovations run a topology, FSI or thermofluid study on one of your own components in a 45-minute technical session.